Skip to content

British Thermal Units to Joules Converter

Convert british thermal units to joules and back instantly with formula and common values.

BTU

Joules

5,591.818

J

5.3 BTU = 5,591.818 J

J = BTU × 1,055.06

British Thermal Units to Joules: 1 BTU equals 1055.06 J. To convert british thermal units to joules, multiply by 1055.06 (J = BTU × 1,055.06). For example, 10 BTU = 10550.6 J.

How to Convert British Thermal Units to Joules

To convert from british thermal units to joules, multiply the value by 1055.06. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • British Thermal Units to Joules: J = BTU × 1,055.06
  • Joules to British Thermal Units: BTU = J ÷ 1,055.06

British Thermal Units to Joules Conversion Chart

British Thermal Units (BTU)Joules (J)
0.1105.506
0.25263.765
0.5527.53
11055.06
22110.12
33165.18
55275.3
1010550.6
2021101.2
2526376.5
5052753
100105506
250263765
10001055060

Understanding the Units

What is a British Thermal Unit?

A British thermal unit (BTU) equals approximately 1,055.06 joules — the energy needed to raise one pound of water by one degree Fahrenheit.

Common contexts: HVAC, natural gas (US), heating systems.

What is a Joule?

The joule is the SI derived unit of energy, equal to the work done by a force of one newton acting through a distance of one meter (1 J = 1 N·m = 1 W·s).

Named after James Prescott Joule (1818–1889), the English physicist who demonstrated the mechanical equivalent of heat.

Common contexts: physics, chemistry, engineering.

Real-World Reference Points

Item British Thermal Units (BTU) Joules (J)
Energy to lift an apple 1 m0.00091
Heart beat (resting)0.00091
AA battery (alkaline)8.53039000

Related

Joules to Calories Converter

Convert joules to calories and calories to joules instantly with formula and common values.

Calories to Joules Converter

Convert calories to joules and joules to calories with precise conversion factor.

BTU to Joules Converter

Convert British Thermal Units to joules and joules to BTU for heating and energy calculations.

Kilowatt Hours to Joules Converter

Convert kilowatt hours to joules and joules to kWh for electricity and energy calculations.

Calories to Kilocalories Converter

Convert calories to kilocalories and kilocalories to calories for nutrition and science.

Joules to Kilojoules Converter

Convert joules to kilojoules and kilojoules to joules with simple metric prefix conversion.

FAQ

How do I convert british thermal units to joules?

Multiply by 1,055.06. For example, 5.3 BTU × 1,055.06 = 5,591.818 J.

What is the formula for british thermal units to joules?

The formula is: J = BTU × 1,055.06.

How many joules are in one british thermal unit?

One british thermal unit equals 1,055.06 joules.

How many joules are in 1 british thermal unit?

1 BTU equals 1055.06 J.

How do you convert british thermal units to joules?

Multiply the british thermal unit value by 1055.06. Formula: J = BTU × 1,055.06.

How many joules are in 5 british thermal units?

5 BTU = 5275.3 J.

How do you convert joules back to british thermal units?

Use the inverse formula: BTU = J ÷ 1,055.06. For example, 1 J = 0.000948 BTU.

What is the difference between British Thermal Unit and Joul?

A British thermal unit (BTU) equals approximately 1,055.06 joules — the energy needed to raise one pound of water by one degree Fahrenheit. The joule is the SI derived unit of energy, equal to the work done by a force of one newton acting through a distance of one meter (1 J = 1 N·m = 1 W·s).